- Air temperature, \( T_{\infty} = 20^\circ C \)
- Outer surface temperature, \( T_s = 250^\circ C \)
- Heat transfer coefficient, \( h = 25 \, W/m^2K \)
- Thermal conductivity of the plate, \( k = 43 \, W/mK \)
- Heat transfer by radiation, \( Q_{\text{rad}} =
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